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991.
992.
K Anandakumar DV Santhi D Jothieswari R Subathrai T Vetrichelvan 《Indian journal of pharmaceutical sciences》2011,73(5):569-572
A simple, efficient, precise and accurate absorbance ratio method have been developed for the estimation of eprosartan mesylate and hydrochlorothiazide in pure and in fixed dose combination. In this method, UV spectra of eprosartan mesylate and hydrochlorothiazide were overlayed which involves the formation of Q-absorbance equation at 249.1 nm (isobestic point) and 274.5 nm, the max of hydrochlorothiazide. Both the drugs obeyed Beers law in the concentration range of 6-36 μg/ml and 1-10 μg/ml for eprosartan mesylate and hydrochlorothiazide, respectively. The accuracy of the method was determined by recovery studies and was found to be in the range of 102.29-103.10% and 99.52-101.60% for eprosartan mesylate and hydrochlorothiazide, respectively. The method was validated as per ICH guidelines and statistically. The method showed good reproducibility and recovery with % RSD less than 2. The method was found to be simple, economic, accurate and reproducible and can be used for routine analysis of eprosartan mesylate and hydrochlorothiazide in pure and in fixed dose combinations. 相似文献
993.
994.
Suresh Bugide Vijay Kumar Gonugunta Vasudevarao Penugurti Vijaya Lakshmi Malisetty Ratna K. Vadlamudi Bramanandam Manavathi 《Cellular oncology (Dordrecht)》2017,40(2):133-144
Purpose
Hematopoietic PBX interacting protein (HPIP), a scaffold protein, is known to regulate the proliferation, migration and invasion in different cancer cell types. The aim of this study was to assess the role of HPIP in ovarian cancer cell migration, invasion and epithelial-mesenchymal transition (EMT), and to unravel the mechanism by which it regulates these processes.Methods
HPIP expression was assessed by immunohistochemistry of tissue microarrays containing primary ovarian tumor samples of different grades. OAW42, an ovarian carcinoma-derived cell line exhibiting a high HPIP expression, was used to study the role of HPIP in cell migration, invasion and EMT. HPIP knockdown in these cells was achieved using a small hairpin RNA (shRNA) approach. Cell migration and invasion were assessed using scratch wound and transwell invasion assays, respectively. The extent of EMT was assessed by determining the expression levels of Snail, Vimentin and E-cadherin using Western blotting. The effect of HPIP expression on AKT and MAPK activation was also investigated by Western blotting. Cell viabilities in response to cisplatin treatment were assessed using a MTT assay, whereas apoptosis was assessed by determining caspase-3 and PARP cleavage in ovarian carcinoma-derived SKOV3 cells.Results
We found that HPIP is highly expressed in high-grade primary ovarian tumors. In addition, we found that HPIP promotes the migration, invasion and EMT in OAW42 cells and induces EMT in these cells via activation of the PI3K/AKT pathway. The latter was found to lead to stabilization of the Snail protein and to repression of E-cadherin expression through inactivation of GSK-3β. We also found that HPIP expression confers cisplatin resistance to SKOV3 cells after prolonged exposure and that its subsequent knockdown decreases the viability of these cells and increases caspase-3 activation and PARP proteolysis in these cells following cisplatin treatment.Conclusions
From these results we conclude that HPIP expression is associated with high-grade ovarian tumors and may promote their migration, invasion and EMT, a process that is associated with metastasis. In addition, we conclude that HPIP may serve as a potential therapeutic target for cisplatin resistant ovarian tumors.995.
Pratha VS Hogan DL Lane JR Williams PJ Burton MS Lynn RB Karlstadt RG 《Digestive diseases and sciences》2006,51(1):123-131
Our objective was to compare the onset and duration of a single dose of pantoprazole or omeprazole on maximally stimulated
gastric acid secretion. This double-blind, randomized, placebo-controlled study involved 36 healthy adults and utilized continuous
pentagastrin infusion to stimulate acid secretion after administration of pantoprazole, 40 mg, omeprazole, 20 mg, or placebo.
Gastric aspirates were collected over 24 hr and analyzed for volume, pH, and hydrogen ion concentration, and gastric acid
outputs (GAO) were calculated. Comparison between GAO and intragastric pH was performed. Pantoprazole resulted in significantly
greater inhibition of GAO than omeprazole. Mean cumulative 24-hr GAO was 164 ± 130 mEq for pantoprazole versus 283 ± 159 mEq
for omeprazole (P = 0.031). Pantoprazole patients reached and maintained GAO levels below the 10-mEq/hr threshold at 5.7 hr, whereas omeprazole
patients never reached this threshold. We conclude that pantoprazole significantly suppressed gastric acid secretion compared
to omeprazole. Comparisons between pH and GAO showed that GAO was a more appropriate measure of gastric acid secretion than
intragastric pH.
This work received financial support from Wyeth Pharmaceuticals. 相似文献
996.
RCS Martins ML Andersen SA Garbuio LR Bittencourt C Guindalini MC Shih MQ Hoexter RA Bressan MLV Castiglioni S Tufik 《Sleep》2010,33(2):243-251
Objectives:
To assess the influence of total or selective REM sleep deprivation on the dopamine transporter (DAT) densities and sleep patterns of healthy volunteers.Design:
Prospective study.Setting:
Evaluation of polysomnography recordings and DAT density after 4 nights of selective REM sleep deprivation followed by 3 nights of sleep recovery compared to a control group and a group that was subjected to 2 nights of total sleep deprivation. Single positron emission computed tomography and [99mTc]TRODAT-1 were used to assess the cerebral DAT density in the striatum at baseline, after REM sleep deprivation and total sleep deprivation as well as after sleep recovery. Blood was collected daily to examine prolactin and estradiol levels, which were correlated with dopaminergic activity.Patients or Participants:
Thirty healthy male volunteers ranging from 19 to 29 years of age were randomly assigned to one of three experimental groups after giving written informed consent (10 non-sleep deprived, 10 total sleep deprived, and 10 REM sleep deprived).Measurements and Results:
Four nights of REM sleep deprivation and 2 nights of total sleep deprivation induced distinct and heterogeneous patterns of sleep recovery. No significant modulation of DAT availability was observed within groups. In the recovery nights, changes in cortisol, prolactin and estradiol concentrations were significantly correlated with specific sleep stages in the total and REM sleep deprived groups. In addition, DAT density was positively correlated with estradiol concentration and inversely associated with SWS latency only after total sleep deprivation.Conclusion:
Our study demonstrates that although sleep deprivation did not promote significant alterations in DAT density within the striatum, there were significant correlations among transporter availability, hormonal concentrations and sleep parameters.Citation:
Martins, RCS; Andersen ML; Garbuio SA; Bittencourt LR: Guindalini C; Shih MC; Hoexter MQ; Bressan RA; Castiglioni MLV; Tufik S. Dopamine transporter regulation during four nights of REM sleep deprivation followed by recovery – an in vivo molecular imaging study in humans. SLEEP 2010;33(2):243-251. 相似文献997.
Nerve stepping stone has minimal impact in aiding regeneration across long acellular nerve allografts 下载免费PDF全文
Ying Yan MD PhD Daniel A. Hunter RA Lauren Schellhardt BA Xueping Ee MD Alison K. Snyder‐Warwick MD Amy M. Moore MD Susan E. Mackinnon MD Matthew D. Wood PhD 《Muscle & nerve》2018,57(2):260-267
Introduction: Acellular nerve allografts (ANAs) yield less consistent favorable outcomes compared with autografts for long gap reconstructions. We evaluated whether a hybrid ANA can improve 6‐cm gap reconstruction. Methods: Rat sciatic nerve was transected and repaired with either 6‐cm hybrid or control ANAs. Hybrid ANAs were generated using a 1‐cm cellular isograft between 2.5‐cm ANAs, whereas control ANAs had no isograft. Outcomes were assessed by graft gene and marker expression (n = 4; at 4 weeks) and motor recovery and nerve histology (n = 10; at 20 weeks). Results: Hybrid ANAs modified graft gene and marker expression and promoted modest axon regeneration across the 6‐cm defect compared with control ANA (P < 0.05), but yielded no muscle recovery. Control ANAs had no appreciable axon regeneration across the 6‐cm defect. Discussion: A hybrid ANA confers minimal motor recovery benefits for regeneration across long gaps. Clinically, the authors will continue to reconstruct long nerve gaps with autografts. Muscle Nerve 57 : 260–267, 2018 相似文献
998.
The influence of TNF inhibitors on dementia incidence in patients with rheumatoid arthritis; an analysis from the BSRBR‐RA 下载免费PDF全文
999.
Abraham Degarege Karl Krupp Kristopher Fennie Tan Li Dionne P. Stephens Laura A.V. Marlow Vijaya Srinivas Anjali Arun Purnima Madhivanan 《Journal of pediatric and adolescent gynecology》2018,31(5):494-502
Study Objective
The aim of this study was to compare the parental attitudes and beliefs about human papillomavirus (HPV), cervical cancer, and HPV vaccine between urban and rural areas, India.Design
Cross-sectional.Setting
Mysore, India.Participants
Parents of school-going adolescent girls.Interventions
Parents completed a self-administered questionnaire.Main Outcome Measures
Attitudes and beliefs about HPV, cervical cancer, and HPV vaccine.Results
A total of 1609 parents from urban (n = 778) and rural (n = 831) areas participated in this study. Most of the parents had never heard about HPV (73.6%), did not know that their daughters could get an HPV infection (62.7%) or cervical cancer (64.1%) in the future, and believed that HPV vaccine was not effective (67.1%). Parents living in the urban area were more likely to believe that HPV infection (adjusted odds ratio [aOR], 2.69; 95% confidence interval [CI], 1.43-5.06) and cervical cancer (aOR, 2.68; 95% CI, 1.83-3.91) could cause serious health problems than those living in the rural area. The odds of agreeing that HPV vaccination will make girls sexually active was lower among urban than rural parents (aOR, 0.55; 95% CI, 0.33-0.94). There was no significant difference among parents in the urban and rural areas in their beliefs about susceptibility of their daughter to HPV infection or cervical cancer, and beliefs about the safety and ability of HPV vaccine to protect against cervical cancer.Conclusion
Rural parents might be reluctant to recommend behaviors that can help prevent HPV infection and cervical cancer such as HPV vaccination for their daughters. 相似文献1000.
Jhuma Sankar Krishna Mohan Gulla U Vijaya Kumar Rakesh Lodha SK Kabra 《Indian pediatrics》2018,55(11):972-974